One Montenegro
One Montenegro is a Montenegrin mobile telecommunications operator formerly known as ProMonte and Telenor Montenegro.
Last updated August 24, 2026
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Overview
One Montenegro, legally One Crna Gora DOO, is a mobile telecommunications operator serving Montenegro. The business originated in the mid-1990s, when PTT of Montenegro and European Telecom Luxembourg established a partnership to pursue a national mobile-telephony concession. In January 1996, the consortium obtained a 20-year concession to develop a GSM 900 network, and the operating company ProMonte was incorporated in March of that year. The network became operational on July 10, 1996, the date associated with Montenegro's first mobile telephone call. The company expanded its radio-access authorization over time. In December 2001, it received a 15-year license covering both GSM 900 and DCS 1800 frequencies. During the same period, PTT of Montenegro sold its remaining 9% interest to European Telecom Luxembourg, consolidating the latter's position in the business. Telenor subsequently became the controlling force: on August 11, 2004, it acquired an additional 55.9% of ProMonte's shares and became the company's sole owner. The ProMonte identity was retained for several years before the operator adopted the Telenor brand on May 18, 2010. Telenor Montenegro later became part of a wider Southeast European portfolio. In January 2018, management confirmed reports that Telenor was considering the sale of its businesses in Bulgaria, Hungary, Montenegro and Serbia. In March 2018, those operations were sold to the investment fund PPF in a transaction reported at €2.8 billion for the regional package. The Montenegro operation subsequently passed into the ownership structure associated with 4iG and Antenna Hungária. By the period covered in the reference material, the company was reported to have more than 1,900 employees, although the figure is not independently dated in the supplied sources. The decisive consumer-facing change came in 2022. On March 1, the company announced that the Telenor brand in Montenegro would be replaced by One, with the rebrand taking effect on March 14. The new identity was presented around friendliness, commitment, agility and transparency. One Montenegro therefore represents a continuation of the country's second-generation mobile-communications history under a new regional brand architecture, rather than a newly founded operator. Its business scope is centered on mobile connectivity and related telecommunications services in the Montenegrin market.
History
One Montenegro traces its origins to an agreement signed in November 1995 between PTT of Montenegro and European Telecom Luxembourg. The parties sought to create a limited-liability company capable of obtaining a mobile-telephony license in Montenegro. Their consortium received a 20-year concession in January 1996 to establish a GSM 900 network. ProMonte was formed two months later, in March 1996, and launched service on July 10, 1996. That launch is associated with the first mobile telephone call made in Montenegro. The operator's licensing and ownership structure developed during the following decade. In December 2001, ProMonte obtained a 15-year authorization covering GSM 900 and DCS 1800 technologies. At approximately the same time, PTT of Montenegro sold its 9% shareholding to European Telecom Luxembourg. Telenor later increased its presence substantially. On August 11, 2004, it completed the purchase of an additional 55.9% of ProMonte's shares, making Telenor the company's 100% owner. ProMonte continued operating under its original name until May 18, 2010, when it was rebranded as Telenor. The change aligned the Montenegrin operator with Telenor's international brand system. The company subsequently formed part of Telenor's Southeast European business alongside operations in Bulgaria, Hungary and Serbia. In January 2018, company management confirmed media reports that Telenor was interested in selling its Southeast European assets. The proposed disposal was completed in March 2018, when the investment fund PPF acquired Telenor's businesses in Bulgaria, Hungary, Montenegro and Serbia in a transaction reported at €2.8 billion for the group of operations. The Montenegrin business later became associated with 4iG. According to the supplied reference material, after the acquisition 4iG transferred ownership to Antenna Hungária. The same material reports that the company had more than 1,900 employees as of December 2021, though no detailed workforce methodology or more precise date is provided. The operator announced another major identity change on March 1, 2022. Telenor Montenegro stated that its brand would become One, with the transition taking place on March 14. The new brand was described through the attributes of friendliness, commitment, agility and transparency. The rebrand changed the commercial identity while continuing the operating history that began with ProMonte in 1996. One Montenegro is therefore best understood as the current brand and corporate continuation of a long-established Montenegrin mobile operator, rather than as a newly established network.
- 2022
Telenor Montenegro becomes One Montenegro
[1]The operator announced the replacement of the Telenor brand with One, effective March 14.
- 2018
Regional ownership transfer to PPF
[1]PPF acquired Telenor's operations in Bulgaria, Hungary, Montenegro and Serbia.
- 2010
ProMonte rebrand to Telenor
[1]The operator replaced the ProMonte brand with Telenor on May 18.
- 2004
Telenor becomes sole owner
[1]Telenor acquired an additional 55.9% of ProMonte and became its 100% owner.
- 2001
GSM 900 and DCS 1800 license
[1]ProMonte obtained a 15-year license covering GSM 900 and DCS 1800 use.
- 1996
GSM concession and ProMonte formation
[1]The ETL–PTT consortium received a 20-year GSM 900 concession in January, and ProMonte was incorporated in March.
- 1996
Commercial network launch
[1]ProMonte went live on July 10, the date associated with Montenegro's first mobile telephone call.
- 1995
Founding agreement for a mobile operator
[1]PTT of Montenegro and European Telecom Luxembourg signed an agreement to establish a company intended to obtain a mobile-telephony license.
Products and positioning
A national mobile telecommunications operator positioned around accessible connectivity, customer friendliness, commitment, agility and transparency.
Mobile telecommunications · 1996
One mobile network services
The operator's core offering is mobile connectivity for customers in Montenegro. The business originated with a GSM 900 network and later operated under licenses covering GSM 900 and DCS 1800. The current One identity represents the continuation of the former ProMonte and Telenor Montenegro operation.
Prepaid mobile services
One prepaid services
Prepaid mobile service is a typical category for the operator's consumer business, allowing customers to use mobile voice, messaging and data services without a conventional postpaid subscription. Specific current tariff names and package details are not identified in the supplied reference material.
Postpaid mobile services
One postpaid services
Postpaid mobile subscriptions form part of the operator's standard telecommunications portfolio for recurring consumer and business connectivity. The supplied sources do not specify current plan names, prices or detailed inclusions.
Brand decisions
2022
Rebrand Telenor Montenegro as OneStrategyBackground
Following changes in the ownership and regional brand structure, the company announced a new commercial identity for its Montenegrin operation.
Action taken
The Telenor brand was replaced by One, with the rebrand taking effect on March 14, 2022.
Aftermath
The company continued operating as a mobile telecommunications provider under the One Montenegro identity.
2018
Sell the Southeast European Telenor portfolioM&ABackground
Telenor reviewed the ownership of its Southeast European operations, including Montenegro.
Action taken
Telenor sold its businesses in Bulgaria, Hungary, Montenegro and Serbia to PPF in March 2018.
Aftermath
The Montenegrin operator left Telenor's ownership structure and later became associated with 4iG and Antenna Hungária.
Reported transaction value for the regional portfolio. €2.8 billion (March 2018)
2010
Adopt the Telenor brandStrategyBackground
After Telenor became the sole owner of ProMonte, the operator was aligned with Telenor's international brand architecture.
Action taken
ProMonte was rebranded as Telenor on May 18, 2010.
Aftermath
The Montenegrin operator continued under the Telenor identity until the subsequent transition to One in 2022.
Sources1 sources
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